# Screen Quick Reference

## Basic

| Description 				| Command 				|
|---------------------------------------|---------------------------------------|
| Start a new session with session name | `screen -S <session_name>`		|
| List running sessions / screens	      | `screen -ls`				|
| Attach to a running session		        | `screen -x`				|
| Attach to a running session with name	| `screen -r <session_name>`		|
| Detach a running session		          | `screen -d <session_name>`		|
| Kill a running session                | `screen -X -S [session # you want to kill] kill` |
| Accessing a screen that is already attached | `screen -r -d [session name]` |

## Escape Key

All screen commands are prefixed by an escape key, by default Ctrl-a (that's Control-a, sometimes written ^a). To send a literal Ctrl-a to the programs in screen, use Ctrl-a a. This is useful when when working with screen within screen. For example Ctrl-a a n will move screen to a new window on the screen within screen. 

## Getting Out

| Description				| Command						|
|---------------------------------------|-------------------------------------------------------|
| detach 				| `Ctrl-a d`						|
| detach and logout (quick exit) 	| `Ctrl-a D D`						|
| exit screen 				| `Ctrl-a :` quit or exit all of the programs in screen.|
| force-exit screen 			| `Ctrl-a C-\` (not recommended) 			|

## Help

| Description	| Command			|
|---------------|-------------------------------|
| See help	| `Ctrl-a ?` (Lists keybindings)|

## Window Management

| Description				| Command								|
|---------------------------------------|-----------------------------------------------------------------------|
| Create new window 			| `Ctrl-a c`								|
| Change to last-visited active window 	| `Ctrl-a Ctrl-a` (commonly used to flip-flop between two windows)	|
| Change to window by number 		| `Ctrl-a <number>` (only for windows 0 to 9)				|
| Change to window by number or name 	| `Ctrl-a ' <number or title>`						|
| Change to next window in list 	| `Ctrl-a n` or `Ctrl-a <space>`					|
| Change to previous window in list 	| `Ctrl-a p` or `Ctrl-a <backspace>`					|
| See window list 			| `Ctrl-a "` (allows you to select a window to change to)		|
| Show window bar 			| `Ctrl-a w` (if you don't have window bar)				|
| Kill current window 			| `Ctrl-a k` (not recommended)						|
| Kill all windows 			| `Ctrl-a \` (not recommended)						|
| Rename current window 		| `Ctrl-a A`								|

## Split screen

| Description				| Command								|
|---------------------------------------|-----------------------------------------------------------------------|
| Split display horizontally 		| `Ctrl-a S`								|
| Split display vertically 		| `Ctrl-a |` or `Ctrl-a V` (for the vanilla vertical screen patch)	|
| Jump to next display region 		| `Ctrl-a tab`								|
| Remove current region 		| `Ctrl-a X`								|
| Remove all regions but the current one| `Ctrl-a Q`								|

## Misc

| Description						| Command								|
|-------------------------------------------------------|-----------------------------------------------------------------------|
| Redraw window 					| `Ctrl-a C-l`								|
| Enter copy mode 					| `Ctrl-a [` or `Ctrl-a <esc>` (also used for viewing scrollback buffer)|
| Paste 						| `Ctrl-a ]`								|
| Monitor window for activity 				| `Ctrl-a M`								|
| Monitor window for silence 				| `Ctrl-a _`								|
| Enter digraph (for producing non-ASCII characters) 	| `Ctrl-a Ctrl-v`							|
| Lock (password protect) display 			| `Ctrl-a x`								|
| Enter screen command 					| `Ctrl-a :`								|
| Enable logging in the screen session 			| `Ctrl-a H`								|

## Scrolling 

| Description | Command |
|-----|------|
| Enter scrolling mode | Ctrl-a esc |
| Scroll Up | Ctrl-u |
| Scroll Down | Ctrl-d |
| Exit scrolling mode | esc esc |

This section is a contribution from: [@mickpbarry](https://gist.github.com/mickpbarry)